This journal article compares design versus as-built topography for five salmonid spawning habitat rehabilitation projects at riffle-pool geomorphic units on the lower Mokelumne River, California, USA.
The emergent practice of applied river restoration uses best available equipment and contouring methods to construct detailed designs with some features at scales as small as 0.5-m relief. As part of adaptive management, it is necessary to determine the practicability of design features and construction methods before widespread adoption.
The authors conclude that constructing broad (>0.5-m relief) features of process-based salmonid spawning habitat rehabilitation projects by gravel augmentation is practicable. However, uncertainties attributed to human error and available methods inhibit detailed (
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